package bbalgae_JavaJDBC;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

public class J03_MemberDAO implements J03_IMemberDAO {

	private String DRV = "oracle.jdbc.driver.OracleDriver";
	private String URL = "jdbc:oracle:thin:bbalgae/bbalgae@112.216.253.125:1521:xe";
	private String insertSQL = "insert into J03Member values (exam.nextval,?,?,?,?,sysdate)";
	private String selectSQL = "select * from J03Member order by mno desc";
	private String modifySQL = "update J03Member  set password=?, name=?, email=?,regdate=sysdate where mno=?";
	private String deleteSQL = "delete J03Member where mno=?";

	@Override
	public boolean insertMember(J03_MemberVO m) {

		Connection conn = null;
		PreparedStatement pstmt = null;
		boolean result = false;

		try {
			conn = this.openDatabase();
			pstmt = conn.prepareStatement(insertSQL);
			// ? 매개변수에 대입할 값 지정
			pstmt.setString(1, m.getUserid());
			pstmt.setString(2, m.getPassword());
			pstmt.setString(3, m.getName());
			pstmt.setString(4, m.getEmail());
			pstmt.executeUpdate();
			result = true;

		} catch (Exception ex) {
			ex.printStackTrace();
		} finally {
			this.closeDatabase(conn, pstmt, null);
		}

		return result;
	} // insertMember의 끝

	/*
	 * select문으로 전체회원정보를 조회한후 MemberVO 내용으로 가지는 동적배열 List로 결과넘김
	 */
	@Override
	public List<J03_MemberVO> selectMember() {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		List<J03_MemberVO> result = new ArrayList<>();
		try {
			conn = this.openDatabase();
			pstmt = conn.prepareStatement(selectSQL);
			rs = pstmt.executeQuery();
			while (rs.next()) {
				J03_MemberVO m = new J03_MemberVO();
				m.setMno(rs.getString("mno"));
				m.setUserid(rs.getString("userid"));
				m.setPassword(rs.getString("password"));
				m.setName(rs.getString("name"));
				m.setEmail(rs.getString("email"));
				m.setRegdate(rs.getString("regdate"));

				result.add(m);

			}
		} catch (Exception ex) {

			ex.printStackTrace();

		} finally {

			this.closeDatabase(conn, pstmt, rs);

		}

		return result;
	}

	@Override
	public boolean updateMember(J03_MemberVO m) {
		Connection conn = null;
		PreparedStatement pstmt = null;
		boolean result = false;

		try {
			conn = this.openDatabase();
			pstmt = conn.prepareStatement(modifySQL);
			pstmt.setString(1, m.getPassword());
			pstmt.setString(2, m.getName());
			pstmt.setString(3, m.getEmail());
			pstmt.setString(4, m.getMno());
	//		pstmt.setString(5, m.getMno());
			pstmt.executeUpdate();

			
			
			result = true;

		} catch (Exception e) {
			e.printStackTrace();
		} finally {

			this.closeDatabase(conn, pstmt, null);

		}

		return result;
	}

	@Override
	public boolean deleteMember(J03_MemberVO m) {

		Connection conn = null;
		PreparedStatement pstmt = null;
		boolean result = false;

		try {
			conn = this.openDatabase();
			pstmt = conn.prepareStatement(deleteSQL);
			pstmt.setString(1, m.getMno());
		int cnt=	pstmt.executeUpdate();
		if(cnt==0)System.out.println("명령 실행됬지만, 수정된 데이터는 없음");	
		result = true;

		} catch (Exception e) {
			e.printStackTrace();
		} finally {

			this.closeDatabase(conn, pstmt, null);
		}

		return result;
	}

	// JDBC Connection 객체를 생성하는 메소드
	private Connection openDatabase() {
		try {
			Class.forName(DRV);
			return DriverManager.getConnection(URL);
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return null;
	}

	// JDBC 객체를 닫는 메서드

	private void closeDatabase(Connection c, PreparedStatement p, ResultSet r) {

		if (r != null)
			try {
				r.close();
			} catch (Exception e) {
			}
		if (p != null)
			try {
				p.close();
			} catch (Exception e) {
			}
		if (c != null)
			try {
				c.close();
			} catch (Exception e) {
			}

	}
}